Machinery base



S. ROSENZWEIG MACHINERY BASE March 15, 1949.

Filed March 51, 1945 As. RosENzwElG MACHINERY BASE March 15, 1949.

Filed March 51, 1945.

, IIIIIIIIIIIIIIIIIIIIIA .3 Sheets-Sheet 2 March 15, 1949. s, RosENzwElG 2,464,613

MACHINERY BASE l @u ,i mi M@ .52 l 5 @j Gg il,

M Z1 f me/who@ ARosenzweitg,

Patentedl Mar. 15, 1949 UNI-TED` STATES PATENT QFFICE 2,464,613v MACHINERY EASE Siegfried Rosenzweig, New' York, N. Y. mentation Mat-cit 31,1945, serial No. 585,832

(Cl. 24a-22) 14 Claims.

This inver-1'nonv relates ter vibration isolation supports fo'i'" machinery bases such, for example, as'af' and 'Oti Combination, although it has gnral' utility the entire machine installation field.

primary object is'ltprovidea construction of eiitlidiay eiiibilityV assembly and erection thereby making" it pessibl'ett meet a wide range ofsp'ci-catis thro the utiliaton of a novel ai" ngeeint f standard structural shapes and slj 'l Claliip'rig devices t f'II skeleton frames of a y length, v'vitl' a minimum expenditure of lab'oi" and material', at th same time, 0btajiiliii'g' rigidity and "strength as Well as simplicity f `iiist11tn p'illiie which Veiicbllages and ins accurate p slticningf the frames and isolation units relative to the machine or load and the' sub-base or floor.

t svt' 'provide a frame including 'cd relation by novel adjustable clamping devices vvvlrli'czli are so constructed as to be placed, iiisitii, at pip'er locations, not only t` Keep theail's' li spreading, but also to anchor the' machine on tle frame and to secure the isltinnunits in ,s eared positions adequately "rt tli'' distributed load o1` Weight of the ma e.

fithm '(bjeIt,v in col'cti'n With the clamping fr evlces',I ,to pr'vid'e 'novel means which eblfs one of vthe primary parts of Said clampnig devices, vrwith slight' modification, readily to perform tvvb'functions, namely, to serve as an ito 'secure' a fna'lfline base to the frame, secuie 'i'sl'ation 'units in'pioper position rela- G/'' Yt0 tl 'l' ad load.

A"'geiij'al olojc'i'.,v 'is to reduce the welding of p'ift's 'at 'th "stef vifstallation to a minimuln, and 'vvliletb Iutilize pre-'fabricated parts and u'nits vvliich inay be stcliedand made ready for s'cial 'installations -vvth a rilni'rnurn of prelimina'yprefsa'ratle; p v

lith the'above and other objects in view, which Willlore readily appear as the nature of the inventioil is better understood', the same consists irl-the `novel construction, combination, and arrangement of parts, hereinafter more fully described, illustrated, an'd claimed.

Apreferred an'd practical embodiment oi the invention lis shown inv the accoinp'an'ying drawings lin which:

Figure f1 is `a plan View *of a machinery base cor'strctedin accordance Twith' the present invntion arranged to fsilpit'l'a fan and motor-as- Figure 2 is an end elevation looking at the extreme left-hand frame part of- Figure 1.

Figure 3 is a side elevation of the angular` frame Velements of Figure 1.

Figure 4 is a detail cross-sectional' Viewv illus- I trating the use of T-shaped sections as the rails of the frame.

FigureA 5 is a detail cross-sectional view illustrating the use of channel members as the rails of the frame.

Figure 6 is a detail'crossesectional View ill-us-V trating the modification of the clamping devices which engage the rails.

Figure '7 is a vertical cross-sectional View taken on the line '-l of Figure 1.

Figure 8 isa detail cross-sectional vievv taken on the line efof rFigure l.

Figure 9 is a vertical cross-sectional view taken on the line ile-9 of Figure 1.

Figure 10 is va vertical cross-sectional view` of a modified form of isolation unit.

Figure l1 is a longitudinal sectional View taken on the line lla-H of Figure 10.

Figure l2 isa lvertical cross sectional View of an features of `the invention' is to provide a construction which is exilole in the sense that its `elements may be pre-fabricated and carried in stock 'so' that when a particular spe-cication is to -loe'rnet, assembly o'f the various elements' is simplied, while, at the saine time, welding and drilling operations `are reduced yto a minimum. For example;A where structural shapes have been heretofore used' -in fabricating-'a machinery Ihase-it has'usually'been necessary to drill 1or tap the same vat the factory or at the point of installation. This step in wfabrication at the `factory requires workmen to lift sections 'of -considerable'weigllt to a drill press k-for drilling with the'consequence that 'this procedure often results in inaccurate vdrilling due kto the human element involved.. at the site', apparatus 'or tools'must be carried along.

Also, since in some cases, 'for example, Where lateral frames are required, Welding .in the shop or factoryis'desirable as distinguished 'from Avvrelding at the siteof 'installation' to avoidtransporting if drilling is required assembled main frame as well as the lateral frames Were all welded together at the shop laborious handling Was required and unwarranted cargo space was necessary for transportation. But, with the present invention these difficulties are avoided since parts only of the ends of the lateral frames need to be welded to one rail of the main frame at the shop. Moreover, it has previously been necessary to aiiix the isolation units to the frame at the time of shop assembly with the result that when the frames were placed at the site of installation, the units were not exactly in proper position on the frame due, either to inequalities in the sub-base or floor, or an unexpected distribution of Weight of the machine relative to the frame.

All of the foregoing difficulties are obviated by the practice of the present invention which permits of the selection of the various parts required for a particular installation and shipping them substantially in what may be termed knockdown form to the site of installation. The various parts may then be assembled by connecting the rails through the clamping devices Without the use of drills or other special equipment and in such a Way that the said clamping devices, as Well as the isolation units, may be slidably adjusted along the rails to the proper position respectively to anchor the machinery base, and support the rails on the sub-base.

In view of the general considerations above set forth, it may be pointed out that the present invention includes one or more frame elements designated generally as A and A including the spaced rails B held together by a plurality of special clamping devices designated generally as C and C. Said clamping devices C-C essentially include a top plate D and a bottom plate E respectively engaging the top and bottom portions of the rails B and secured together by a tension bolt F or its equivalent. The devices C are used anywhere along the frames but preferably at points where the machinery base is to be anchored, While the devices C are used at the location of isolation units. When the frames A-A and A-A of Fig. 1 are assembled, they Will support machinery bases indicated as M and M' in dotted lines.

The rails B which form the frames may be of right angular cross-section, as shown in Figures 1, 2, 3 and 7, or may be of other convenient crosssectional shape. For example, the rails B of Figure 4 may be of T-shaped cross-section; or the rails B2 of Figure 5 may be of channelshaped cross-section. Thus, it will be apparent that the particular shape of the rails constituting the frame may be varied within the scope of the invention to include available standard structural shapes.

Referring to the rails B, it will be seen that the clamping devices C are intended to hold the rails in rigid spaced parallel relation at selected locations throughout the length of the rails. In the preferred form of the invention, the top plate D of the clamping devices C is of substantially inverted channel-shaped formation in the sense that it includes a top web portion d and the depending flanges d. The bottom plate E is preferably flat, although it will, of course, be understood that this plate may likewise be varied in cross-sectional shape, if desired. The plates D and E are substantially as long as they are Wide, but this proportion may vary if desired.

Referring more particularly to the clamping device C shown in Figure '7, it will be observed that the top plate D and bottom plate E are held together by the bolt F which passes through appropriate alined openings in the plates to receive a nut F' which, when rotated in the proper direction on the threaded shank of the bolt, Will cause the plates to be clamped together and thus grip the rails, or, alternatively, the nut may be rotated in the opposite direction to relieve or release clamping pressure. When clamping pressure is relieved, it will be apparent that the clamping devices C may be slidably shifted longitudinally along the rails to any desired point by hand pressure or by the blow of a mallet or other appropriate tool. The bolt F of the clamping devices C shown in Figure 7 is also intended to engage the base of the machine to be supported on the frame A. vThat is to say, the clamping devices C are so positioned relative to the rails A that the bolts F will pass through an opening in the machinery base as Well as the registering openings in the plates, thereby serving to anchor the machine properly to the frame While at the same time securing the clamping devices rigidly in position.

The frame elements A--A' are supported at proper intervals by suitable isolation units designated generally as G in Figures 2, 3, 8 and 9. In these latter gures the isolation units include cork or equivalent blocks, but it Will of course be understood that other forms of vibration media may be employed. For example, Figures 10 and 11 show a modified form of isolation units G Wherein rubber is used as an isolation medium. Figure i2 shows a unit G2 in which metallic springs may be used as the isolation medium. In all cases,

however, the essential features of the clamping devices are preserved Whether or not they serve to anchor the machineryy base to the frame, as Well as clamp the frame parts together, or whether they secure the isolation units at proper locations relative to the frame and its supported load.

In the above connection, reference Will now be made to the form of clamping devices C', illustrated in Figures 8, 9, 10 and l1 for securing the isolation units to the frames` These clamping devices preferably include the identical parts previously described for the devices C except for the bolt and nut assembly F-F, the equivalents of which, in Figures 8 to 11` inclusive, are designated as F2-F3. In these figures the bolt F2 is Welded to the top plate D as shown at w While the nut F3 is elongated so as to receive the threaded end of another bolt F4 which clamps the isolation unit in position relative to the frame. This arrangement also prevails in Figures 10 and 11.

Referring first, more in detail to Figures 8 and 9, it will be observed that the cork isolation block I is provided with a central opening While its base is formed by a metallic plate 2.' This plate is provided with a countersunk portion 3 surrounding an aperture which receives a thimble or cup ll whose bottom or transverse attaching Wall 5 is provided with an opening for receiving lthe shank of bolt F4. The head of this bolt, together with a washer bears against a rubber or other compressible disc 6 while the threaded shank thereof enters the elongated nut F3 when the bolt is rotated. In this arrangement the clamping device C is tted to the desired position on the rails B--B by utilizing the elongated nut F3 as a clamping nut in cooperation with the bolt Fil which, as previously explained, is welded to the top plate C of the clamp. The isolation unit G is then held to the bolt F2 of the clamp by the bolt F4 being manipulated as previously described.

arodrome The; effect. of the-bolt: enteringy the., elongated4 nut; 'F'fis-to..y .drawithe base plate. y2;. toward the frame through the medium. of the, cup, 4,; This.

arrangement alsosproti'desin effect 'ai double-actingsh'ockabsorber, that is, one which assists in checkingVv the tendency ofupward movement of` the-frame A; relative to. the oonas Well as performing its normal functionof damping vibrations transmitted from the machine tol the floor orf subebase.

Ashwill beiseen from Figure 9=, which is a sectional. view taken-at right anglesftoFigure 8, the. isolationzunitG is preferably provided with means foranchoring. the. sameto the flooror ksub-base. In the example shown, this means consists of an angle member I Weldedv asat- Sto the base plate. 2 and' having. its` horizontalvr leg 9...provided with a fastening receiving opening I to admi-t 'a fastening-for-securing the` frame to the. floor..

Aswill be apparent from Figure 3, the frame A has isolation units. G at eachend, the same havingthe .angles 'l as above described attached thereto for the purposeA of .providing an anchor between theframe and the sub-base. However, it will be noted thataunit ofthe type of the isolation unit G maybe placed 'at other locations, medially of theends of the-frame if desired.

'TheI type ofisolation unitiG, shown in Figures 10 and 11, and connected to the frame A or A by theclamping device C", includes a substantially arched isolation bracket designated generally as II. and including a transverse att'achingwall I2 provided 'with an opening while the ldownwardly extending legs thereof include the rubber isolationV elements I3 vulcanized to the parts forming the-legs.` Each ofthe legs including vibration isolationelements I3` are provided with outwardly extending feet I4 which engagein the groovesprovided by the inturned flanges I5 of the base plate I6. The isolationfunit G'is attachedv to the clamping device C inthe same manner as the isolation unit G is attached to its related clamping device C. In that connection it will of course be understood that the clamping devices C fare essentially `the same as each other, and, in turn, each of these clamping devices vincludes the same elements as the-clamping devices C.

Referring specifically to Figuresv and l1', the elongated nut F3 is intended to receive the threaded'shank of-a bolt I1 whose head engages beneath the transverse attachingY web |j2` of the unit G so that when the bolt I'I' is screwedjinto the elongated nut F3, the isolfation'unit G" is secured to thefclamping device. The arrangement shown in fFigures 10 and 11 has the advantage that since the elongated nut F3 is mOle or less exposed for tQQl engagement al all times, the, elements` of the clamping device maybe left somewhat loose after thebolt I'l of the isolation u nit has been partially screwed intoposition so that the entire unit and clamping device may be shifted along the frame even after it has beeni installed and .before final adjustments have been made. In that connection itswill also be observed that the heady of the bolt Il is accessible for tool engagement.

Figures 10 andll the-baseplate I6 may be provided at one endf'wi-th an-opening I8r to. receive affasteningI for ancl'ioring;thel unit G to the oor orcs-,ub-Vbese.

Figure Il2 lof the. drawingsillpstratingthe coily v spring type of isolator G2 includesclampipg deviceCt-heretofore described as comprising the parte; Bland ,E andthe bolt and nut,y combination spring cup 2 0 whiclrzrests onthevcountersunk portion IV` of the., metallic. plate 22-` whose nutenedges are interlocked with f they anges :2-3: of vthey. The opening inthe plate 22.. bounded f by the countersunk portion 2li receives. the flanged cup` elementi 2E'rwh'osev perforated@` Vtransverse wall receives; .the bolt: F4. As. shown;-l

base plate.v 2:1.V

the head of the bolt' Ft clampsan isol'ationmedium 2between the underside ofv its; head washer. andar. the transverse wall ofthe. cup. Hence, Whenwthe bolt F4 is screwed'intosthe coupling nut. F3 thel entire structure` willybe held'. assembled and:` the f isolator Grv2 will functonin the intendedway.

Figure 13. illustrates; another form fof. isolationy unit, designated generally as G3, wherein ther. clampingv device C3 is. different .from the clamping# devices C, C and C2; previously described. In

this arrangement the-block of' corkor otherisola'- v tion medium 2l is providedwith a centralaopeningl and its bottom faceY restson the metallic plate 23e` having the. countersunk portion` 29which receives The perforated transverse Walle-of# the cup 30. the cup 3E! is intended to receive a bolt F51 Whose head portion, with theaid of a washer, compresses isolation material 3l undersideor web of theY topplate D2.

utilized as they means for clamping the rails B3 together against the sides of the isolation-material shown and that the-topplate D2 is anchored to. the metallic bottornplate .23- through the Ine- It will'off course dium of the bolt F5,` and `nut-F62 be understood that" in assembling' the arrangement just described the rails B3 may be slidably'.v

interlocked with the top plate D'2` andthen theisolation unit 21' put in place-and secured by the bolt F5 as just described'. It` will also be understood that the rails B3 vmay-be held in proper position by the flangedy top plate D2 atV points" intermediate isolation units including the' blocksof isolation material 21". Also, if desired the plate' l' D2 may be provided vwith an upstanding bolt' ons` the order ofthe bolt F in Fig. 7 to anchor a ma* chinery base to the isolation unit.

that when they are clamped-'together the ends bite into the rails.

From theforegoing, it will'be apparent that the,

individual frairlf-:sv A -A may' be. readily assembled by bringing the rails B-vr into parallel relationV and fitting the clamping device C thereto. Like-v wise, the isolation units/'G or G'Mmay be initially assembled to` their approximate posit-ions. After'- the. frames areA set.V up vand i the isolation units? are adjusted and setl in the desired locations, the clamping devices C may be positionedv so as topermit the` opening-s therein to register with the openings in the machine base`v whereupon the bolt and/nut assembly F-F may be-put in place -toff against theperforatedHV transverse wallof the cu-p. Thez threaded end ofik the bolt F5 screws into the nut F6 welded to theY This plate has the marginal edges thereof` turned inwardlyA` to form the anges 32 which receive ther-related' ange of a rail member Byfwhich, as will be ole-fserved from the drawing, is in the formfof. arr' angle iron Whose vertical flange portion engages-- the side of the block of isolation material 21: It"A will thus be seen that the top plate D2 may bethereby secure the machine to the frame which rests on the isolation elements in spaced relation to the floor or sub-base.

In connection with the isolation units G and G', it will be seen that their relative adjustability along the rails has the advantage of permitting said units to be shifted to compensate for any inaccuracies in the level of the floor or sub-base prior to mounting the machine on the frame, as well as to properly support the load.

In connection with the lateral frames A it may be pointed out that they may be built up in the manner described for the frames A. However, it is only necessary to weld the ends of the rails B of the lateral frames A to one of the rails B of the main frame, at the points x, during initial assembly at the shop. Thus, the total weight of Welded parts is reduced to a minimum and relatively small cargo space is required for shipment.

From the foregoing, it is believed that the features and advantages of the invention Will be readily apparent to those skilled in the art and it will of course be understood that changes can be resorted to within the scope of the appended claims.

I claim:

1. A vibration isolation support for machinery, comprising in combination, rail members, means for holding said rail members together to provide an elongated frame, said means consisting of a plurality of devices arranged at selected intervals throughout the length of the rail members for holding the same in rigid spaced parallel relation, said devices including upper and lower clamping plates held in gripping relation tc the rails by bolt and nut tension and vibration absorbing means associated with certain oi said devices.

2. A vibration isolation support for machinery, comprising in combination, rail members forming an elongated frame, clamping devices including upper and lower plate elements for engaging related parts of said rails at spaced intervals to hold said rail members in rigid spaced parallel relation, bolt and nut means for compressing and releasing said plates relative to the rails, and vibration absorbing means associated with certain of said clamping devices.

3. A vibration isolation support for machinery, comprising in combination, rail members forming `an elongated frame, clamping devices including upper and lower plate elements for engaging related parts of said rails at spaced intervals to hold said rail members in rigid spaced parallel relation, bolts and nut means for compressing and releasing said plates relative tothe rails, certain of said bolt and nut means including an elongated nut, and vibration absorbing units positioned beneath the frame, said units each including an attaching member having an opening, a bolt having a head and a threaded shank, the latter passing through said opening to engage said elongated nut, whereby, when the bolt is rotated, the head will draw the said attaching member of the vibration absorbing unit upwardly as the threaded shank proceeds into the elongated nut.

4. A vibration isolation support for machinery, comprising in combination, a frame including rail members, a plurality oi two part clamping devices adjustable longitudinally along the frame to maintain the rails in spaced parallel alinement, certain of said clamping devices having means for causing the clamping devices to grip the rails and anchor a machine base to the rails, and other two part clamping devices having means, for causing the devices to grip the rails and also anchor vibration dampers beneath the rails to support the same and above a floor or the like.

5. A vibration isolation support for machinery, comprising in combination, spaced parallel angle members forming an elongated frame, said angle members having their included angles facing inwardly, a series of clamping devices spaced at intervals and adjustable longitudinally along said angle members and having means for gripping holding the angles in rigid parallel alinement, and isolation units for supporting the frame on a floor or the like at the location of selected clamping devices.

6. A vibration isolation support for machinery, comprising in combination, parallel angle mem.- bers constituting the rails of an elongated frame, said members having their included angles facing inwardly, and a series of rail clamping devices spaced at intervals along said angle members having means for holding the angles in rigid parallel alinement, said rail clamping devices each comprising a transversely disposed upper inverted channel plate and a transversely disposed bottom plate respectively engaging top and bottom portions of the rails, a clamping bolt and nut medially engaging said plates; and isolation units associated with certain of said clamping devices.

'7. A vibration isolation support for machinery according to claim 6, wherein, the nut of a clamping device associated with an isolation unit is elongated, and the isolation units include, a vi bration absorbing body having a central opening,

a perforated base plate, a flanged cup positioned in the opening and having its flange engaging the base plate, and a bolt whose head engages the horizontal Wall of the cup while its shank engages the elongated nut to secure the unit to the clampi ing device and in turn to the frame.

8. A vibration isolation support for machinery, according to claim 6, wherein the nut of a clamping device associated with an isolation unit is elongated, and the isolation unit includes, a frame having a transverse attaching portion provided with an opening, downwardly extendinglegs having vibration absorbing means interposed therein, said legs terminating in outwardly extending feet, and a base plate having inturned flanges to receive said feet, and a bolt passing through the opening of said transverse attaching portion and entering said elongated nut.

9. A vibration absorbing support for machinery, bases, comprising in combination, elongated frames including, rails held in spaced relation by clamping devices adjustable longitudinally along the rails, vibration absorbing units at an end of each frame and secured thereto by one of said clamping devices, said units each including a base plate, and an angle member secured to said base plate and having its horizontal leg perforated to receive a fastening'for anchoring the unit and frame to a floor or sub-base.

10. In a vibration isolation support for machinery, comprising in combination, frame ele` ments including spaced rails disposed in parallel relation, and clamping devices including a web portion having down-turned side flanges for engaging outer portions of the rails to hold said rails against spreading, and means for engaging the inner portions of the rails against lateral movement toward each other.

11. A vibration isolation support for machinery, comprising, frame elements including spaced rails disposed in parallel relation, .and clamping de? vices including a web portion having downwardly and inwardly turned flange portions for engaging the outer portions of the rails -to hold said rails against spreading, and means rcooperating with the web of said clamping device and the inner portions of the rails to prevent said rails from moving laterally inward toward each other.

12. In a vibration isolation support for machinery, frame elements, comprising, in combination, spaced rails, and a plurality of readily attachable and detachable clamping devices slidably adjustable along the rails to selected set positions and including upper and lower plate elements held in clamping relation to the rails by bolt tension to secure said rails in spaced parallel relation.

13. In a vibration isolation support for machinery, frame elements, comprising, in combination, spaced rails, clamping devices selectively positioned at spaced intervals along said rails and having means for holding said rails in spaced parallel relation, and means serving to cause the clamping devices to releasably grip the rails and also anchor a vibration damper to the frame.

14. In a vibration isolation support for ma- Number frame.

SIEGFRIED ROSENZWEIG.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Name Date 1,278,846 Budd Sept, 17, 1918 1,389,424 Brun Aug. 30, 1921 1,974,158 Okenfuss Sept. 18, 1934 2,001,111 Rhodes et al May 14, 1935 2,210,051 Woodbury Aug. 6, 1940 2,230,511 Luttrup Feb. 4, 1941 

